Answer:
the mass of CaO present at equilibrium is, 0.01652g
Explanation:
= 3.8×10⁻²
Now we have to calculate the moles of CO₂
Using ideal gas equation,
PV =nRT
P = pressure of gas = 3.8×10⁻²
T = temperature of gas = 1000 K
V = volume of gas = 0.638 L
n = number of moles of gas = ?
R = gas constant = 0.0821 L.atm/mole.k

Now we have to calculate the mass of CaO
mass = 2.95 * 10 ⁻⁴ × 56
= 0.01652g
Therefore,
the mass of CaO present at equilibrium is, 0.01652g
Classifying compounds as ionic or covalent
If a compound is made from a metal and a non-metal, its bonding will be ionic.
If a compound is made from two non-metals, its bonding will be covalent.
The minimum amount of energy that has to be added to start a reaction is the activation energy, which starts the reaction. It activates it.
the bond will break
The bond will dissolve (break) if the electron absorbs a photon and is moved from a bonding molecular orbital to an antibonding orbital since there is no longer an overall stabilizing interaction.
<h3>What is an antibonding orbital?</h3>
An antibonding molecular orbital is the molecular orbital created by the destructive overlapping of atomic orbitals.
<h3>Why is it called antibonding orbital?</h3>
- Every atom will add one electron to the bond that makes up the lower energy bond.
- To prevent interacting with the other two electrons, the additional electron will occupy a higher energy state.
- The antibonding orbital is the name of this higher energy orbital.
<h3>What orbitals form an antibond?</h3>
- The bonding orbitals are home to electrons that spend the majority of their time between the nuclei of two atoms, whereas the antibonding orbitals are home to electrons that spend the majority of their time outside the nuclei of two atoms.
<h3>When an electron was elevated to the antibonding orbital, what happened?</h3>
- In contrast, putting electrons in antibonding orbitals will make the molecule less stable.
- The energy levels of the orbitals will determine how many electrons are filled.
- The lower energy orbitals will be filled first, and then the higher energy orbitals.
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